CN103568088A - Method for preparing vitrified timber through bulk polymerization of methyl methacrylate in timber - Google Patents
Method for preparing vitrified timber through bulk polymerization of methyl methacrylate in timber Download PDFInfo
- Publication number
- CN103568088A CN103568088A CN201310555275.7A CN201310555275A CN103568088A CN 103568088 A CN103568088 A CN 103568088A CN 201310555275 A CN201310555275 A CN 201310555275A CN 103568088 A CN103568088 A CN 103568088A
- Authority
- CN
- China
- Prior art keywords
- timber
- methyl methacrylate
- bulk
- polymerisation
- vitrifying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a method for preparing vitrified timber through bulk polymerization of methyl methacrylate in timber, which is a method for preparing the vitrified timber by immersing micro-molecular methyl methacrylate in pore canals of the timber to perform bulk polymerization. According to the method, the liquid methyl methacrylate and initiator and a modifier are immersed into the timber; bulk polymerization reaction occurs to the inner surfaces of air gaps of the timber to in situ produce transparent solid polymethyl methacrylate or methyl methacrylate copolymer which is insoluble in water; the polymethyl methacrylate or methyl methacrylate copolymer fills the pore canals of the timber to realize vitrification of timber, so that the compactness, the water resistance, the compressive strength and the wear resistance of the timber are improved, and the timber has good dimensional stability and processability. The method for preparing the vitrified timber through the bulk polymerization of the methyl methacrylate in the timber has the characteristics of simple and convenient process, no need of solvent, environmental friendliness and the like.
Description
Technical field
The invention belongs to the improvement of strengthening function property of timber and higher value application technical field, specially refer to the solid woods such as log, sawn timber, plate side and fill strengthening and high value added utilization.
Background technology
Timber is one of four great tradition materials, and it is often used as building, furniture and indoor hardware fitting.Yet China can be very limited for the high-quality timber resources utilizing, although the contradiction of timber supply and demand has been alleviated in the application of fast growing wood to a certain extent, but these fast growing woods exist, material is soft, hardness is little, intensity is low, the defect of distortion apt to rot, has seriously restricted the range of application of fast growing wood.Therefore, fast growing wood is carried out to functionality improvement very necessary.
A kind of preparation method of wood plastic composite and the wood plastic composite making (CN200810022633.7) reported macromolecule emulsion evenly mixed with string, drying dehydration aftershaping and make a kind of wood plastic composite.Composite wood-plastic composite has good woodiness touch, and moisture-proof, coloring are good, and partiting thermal insulation is anticorrosion, mechanical performance is excellent, light weight, antiacid alkali, without putrefaction, anti-insect, and absolutely reclaiming utilization, property indices can compare favourably with hardwood products.
The production method of grafting of lumber plastics (CN89102815.3), be timber under suction function, styrene solution is filled up timber interior tissue space, under a small amount of peroxide causes, heated polymerizable becomes grafting of lumber plastics.This species complex has the performances such as strong hardness, heat resistance, moisture proof, good toughness, Anti-moth-eating, anti-corrosive properties, resistance to distortion, resistance to bending.
Polymethyl methacrylate is commonly called as lucite, is the material of asepsis environment-protecting, has good chemical stability and weatherability, has the advantages such as light weight, inexpensive, easy-formation simultaneously, and polymethyl methacrylate transparency is good, has outstanding resistance to ag(e)ing; Its proportion is less than half of simple glass, and shatter-resistant ability but exceeds several times; It has good insulating properties and mechanical strength; Acid, alkali, salt are had to stronger decay resistance; Easily machine-shaping, can carry out craft and the machinings such as bonding, saw, plane, brill, quarter, mill, serigraphy, sandblast, flexiblely after heating is compression molded into various acrylic goods.The field such as button, daily necessities that is widely used in auto industry, pharmaceuticals industry, electronic product.But not high, the easy snag of case hardness, shock resistance are low, moulding poor mobile performance etc. is the shortcoming of polymethyl methacrylate.
Summary of the invention
Technical problem solved by the invention is to provide the polymerisation in bulk in timber of a kind of methyl methacrylate to prepare the method for vitrifying timber, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
The method of vitrifying timber is prepared in methyl methacrylate polymerisation in bulk in timber, and concrete steps comprise:
(1) methyl methacrylate is mixed to abundant impreg material in mixed solution with initator, modifier;
(2) by airtight the displaying at least 24 hours of wood materials after dipping;
(3) by heated at constant temperature, make the macerate being impregnated in wood materials in step (1) in the reaction of wood materials situ, generate EVA or the polymethyl methacrylate of methyl methacrylate in confined conditions, after reacting completely, keep airtight condition to carry out ageing;
(4) take out reacted wood materials, washing, dry, slicing sanding.
In the present invention, selected wood materials is a kind of in log, sheet material, square bar, veneer, thin plate, wood chip, wood powder, fiberboard, paper making raw material.
In the present invention, the EVA of described methyl methacrylate is the EVA that in methyl methacrylate and styrene, butadiene, vinylacetate, allyl glycidyl ether, ethylene glycol dimethacrylate, GMA, any one modifier monomer copolymerization forms.
In the present invention, described initator is a kind of in organic peroxide evocating agent, inorganic peroxide initator, azo-initiator and redox initiator.
In the present invention, the mass ratio of described methyl methacrylate and modifier is 100:(10 ~ 30), with the mass ratio of initator be 100:(0.5 ~ 2.0).
In the present invention, described impregnation technology adopts vacuum-impregnating by pressure.
In the present invention, described heated at constant temperature step comprises the following steps: 85 ~ 90 ℃ of first constant temperature, and temperature retention time 8 ~ 10 hours, then be warming up to 100 ~ 110 ℃, temperature retention time 8 ~ 10 hours.
In the present invention, the washing in described step (4), for adopting diluted acid, diluted alkaline and pure water to wash successively, guarantees the cleaning of wood materials, described being dried as the vacuum drying under normal temperature.
beneficial effect:
The present invention adopts polymerisation in bulk principle, and monomer, initator, modifier are all micromolecular liquid, thereby than being easier to immerse in timber pore; The present invention is bulk polymerization, does not need additionally to add solvent, immerses treatment fluid in timber and can both solidify after by polymerisation and reside among timber, environment is not worked the mischief; The present invention is that the polymethyl methacrylate of solid glass shape or methyl methacrylate copolymer body are filled in and in timber, form vitrified wood materials, had the denominator of timber and polymer concurrently, thereby compare with unseasoned timber, it has good dimensional stability, hardness, intensity and wearability, and can cover with paint, lacquer, colour wash, etc., dig, cut, processing and the solid wood indistinction such as nail, be not subject to the restriction of service condition and processing mode etc., it has also retained the timber advantages such as native texture attractive in appearance, and it is also strong compared with unseasoned timber on resistance to water, anticorrosive mildewproof.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, describe the present invention.
Embodiment 1:
(1) by 200 parts of methyl methacrylates and 50 parts of vinylacetates, 1 part of initiator B PO(dibenzoyl peroxide) be uniformly mixed, obtain treatment fluid;
(2) the poplar sawn timber that is 1000mm * 100mm * 100mm by specification packs in vacuum high-pressure immersion can; Unlatching vavuum pump vacuumizes, and maintaining tank internal pressure is 0.015MPa time 60min; Open liquid flowing valve by modification liquid suction immersion can, make liquid level cover poplar sawn timber completely, add 0.8MPa pressure impregnation 3 h;
(3) open draining valve, treatment fluid force feed is returned to reservoir, after adjustment proportioning, give over to and use next time;
(4) by the airtight 24h that displays of poplar square bar after dipping;
(5) poplar sawn timber packs in confined reaction groove, is heated to 90 ℃ of reaction 8 h, is allowed to condition at fully polymerization in timber duct;
(6) after reaction finishes, display more than 24 hours poplar sawn timber is airtight;
(7) poplar sawn timber is put into dry kiln, according to drying schedule, vacuumize air drying.
Poplar sawn timber density after processing by the inventive method reaches 0.65g/cm
3, color and luster is clear beautiful, and anti-breathing rate ASE index can reach 63%, and the wet rate MEE of resistance is 65%, and compression strength improves 0.95 times, and abrasion loss declines 63%.
Embodiment 2:
(1) 200 parts of methyl methacrylates and 50 parts of styrene, 1 part of initiator B PO are uniformly mixed, obtain treatment fluid;
(2) the poplar plate side that is 2000mm * 200mm * 20mm by specification packs in vacuum high-pressure immersion can; Unlatching vavuum pump vacuumizes, and maintaining tank internal pressure is 0.012MPa time 30min; Open liquid flowing valve by modification liquid suction immersion can, make liquid level cover poplar plate side completely, add 0.8MPa pressure impregnation 1 h;
(3) open draining valve, treatment fluid force feed is returned to reservoir, after adjustment proportioning, give over to and use next time;
(4) by the airtight 24h that displays in poplar plate side after dipping;
(5) poplar plate side is heated to 90 ℃ of reaction 10 h in confined chamber, is allowed to condition at fully polymerization in timber duct;
(6) after reaction finishes, display more than 24 hours poplar plate side is airtight;
(7) poplar plate side is put into dry kiln, according to drying schedule, vacuumize air drying.
Poplar plate side density after processing by the inventive method reaches 0.69g/cm
3, color and luster is clear beautiful, and anti-breathing rate ASE index can reach 68%, and the wet rate MEE of resistance is 64%, and compression strength improves 0.76 times, and abrasion loss declines 60%.
Embodiment 3:
(1) 200 parts of methyl methacrylates and 1 part of initiator B PO are uniformly mixed, obtain treatment fluid;
(2) by specification, be that 2500mm * 400mm * 3mm poplar thin plate packs in vacuum high-pressure immersion can; Unlatching vavuum pump vacuumizes, and maintaining tank internal pressure is 0.016MPa time 30min; Open liquid flowing valve by modification liquid suction immersion can, make liquid level cover poplar thin plate completely, add 0.1MPa pressure impregnation 10min, after under 0.8Mpa, flood 20min;
(5) open draining valve, treatment fluid force feed is returned to reservoir, after adjustment proportioning, give over to and use next time;
(6) open drain tap, after removal pressure, poplar thin plate is packed in confined reaction groove, be heated to after 90 ℃ of reaction 8 h, at 100 ℃ of standing 8 h;
(7) after reaction finishes, display more than 24 hours poplar plate thin plate is airtight;
(8) poplar thin plate is put into dry kiln, according to drying schedule, vacuumize constant pressure and dry.
Poplar thin plate applying glue after the inventive method is processed is hot pressed into plate, compares with untreated glued board, and compression strength improves 124% left and right, and ASE is that 60%, MEE is about 49%.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (7)
1. the method for vitrifying timber is prepared in methyl methacrylate polymerisation in bulk in timber, it is characterized in that, concrete steps comprise:
(1) methyl methacrylate is mixed to abundant impreg material in mixed solution with initator, modifier;
(2) by airtight the displaying at least 24 hours of wood materials after dipping;
(3) by heated at constant temperature, make the macerate being impregnated in wood materials in step (1) in the reaction of wood materials situ, generate EVA or the polymethyl methacrylate of methyl methacrylate in confined conditions, after reacting completely, keep airtight condition to carry out ageing;
(4) take out reacted wood materials, washing, dry, slicing sanding.
2. the method for vitrifying timber is prepared in methyl methacrylate according to claim 1 polymerisation in bulk in timber, it is characterized in that, selected wood materials is a kind of in log, sheet material, square bar, veneer, thin plate, wood chip, wood powder, fiberboard, paper making raw material.
3. the method for vitrifying timber is prepared in methyl methacrylate according to claim 1 polymerisation in bulk in timber, it is characterized in that, the EVA of described methyl methacrylate is the EVA that in methyl methacrylate and styrene, butadiene, vinylacetate, allyl glycidyl ether, ethylene glycol dimethacrylate, GMA, any one modifier monomer copolymerization forms.
4. the method for vitrifying timber is prepared in methyl methacrylate according to claim 1 polymerisation in bulk in timber, it is characterized in that, the mass ratio of described methyl methacrylate and modifier is 100:(10 ~ 30), with the mass ratio of initator be 100:(0.5 ~ 2.0).
5. the method for vitrifying timber is prepared in methyl methacrylate according to claim 1 polymerisation in bulk in timber, it is characterized in that, described impregnation technology adopts vacuum-impregnating by pressure.
6. the method for vitrifying timber is prepared in methyl methacrylate according to claim 1 polymerisation in bulk in timber, it is characterized in that, described heated at constant temperature process comprises the following steps: 85 ~ 90 ℃ of first constant temperature, temperature retention time 8 ~ 10 hours, be warming up to again 100 ~ 110 ℃, temperature retention time 8 ~ 10 hours.
7. the method for vitrifying timber is prepared in methyl methacrylate according to claim 1 polymerisation in bulk in timber, it is characterized in that, washing in described step (4) refers to and adopts diluted acid, diluted alkaline and pure water to wash successively, described being dried as the vacuum drying under normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310555275.7A CN103568088B (en) | 2013-11-11 | 2013-11-11 | Methyl methacrylate in wood polymerisation in bulk prepares the method for vitrifying timber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310555275.7A CN103568088B (en) | 2013-11-11 | 2013-11-11 | Methyl methacrylate in wood polymerisation in bulk prepares the method for vitrifying timber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103568088A true CN103568088A (en) | 2014-02-12 |
| CN103568088B CN103568088B (en) | 2016-02-03 |
Family
ID=50041219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310555275.7A Active CN103568088B (en) | 2013-11-11 | 2013-11-11 | Methyl methacrylate in wood polymerisation in bulk prepares the method for vitrifying timber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103568088B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103865098A (en) * | 2014-03-21 | 2014-06-18 | 中南林业科技大学 | Preparation method and application of wood plastic composite |
| CN106625929A (en) * | 2016-12-06 | 2017-05-10 | 阜阳市伟叶家具有限公司 | Poplar strengthening method |
| JP2017519662A (en) * | 2014-06-30 | 2017-07-20 | ダウ グローバル テクノロジーズ エルエルシー | Treated porous material |
| CN107471363A (en) * | 2017-09-19 | 2017-12-15 | 阜南县金威工艺品有限公司 | A kind of method for lifting timber wire-drawing effect |
| CN107921656A (en) * | 2015-06-30 | 2018-04-17 | 陶氏环球技术有限责任公司 | Processed porous material |
| CN108705634A (en) * | 2018-04-24 | 2018-10-26 | 广州精点高分子材料制品有限公司 | A kind of ceramics wood and manufacturing method based on methyl methacrylate |
| CN109648657A (en) * | 2018-12-11 | 2019-04-19 | 浙江大东吴绿家木业有限公司 | Modified wood skin, the method for modifying of wood skin, wood skin/stone plastic composite board and preparation method thereof |
| CN109968481A (en) * | 2019-05-15 | 2019-07-05 | 赛为木业（石首）有限公司 | A kind of fire retarding wood modifying agent and preparation method thereof |
| CN111195950A (en) * | 2020-01-21 | 2020-05-26 | 中国林业科学研究院木材工业研究所 | Wood modifier, wood modifying solution, application of wood modifying solution and wood modification treatment method |
| CN112123489A (en) * | 2020-09-17 | 2020-12-25 | 千年舟新材科技集团有限公司 | Technical wood material immersion liquid, preparation and treatment method and manufacturing process |
| CN114454283A (en) * | 2022-01-17 | 2022-05-10 | 刘建平 | Log rotating magnetic disk and disk body manufacturing method thereof |
| CN115464734A (en) * | 2022-09-30 | 2022-12-13 | 西南民族大学 | Precursor solution, application thereof and preparation method of hydrophobic low-moisture-absorption wood material |
| CN117086967A (en) * | 2023-09-04 | 2023-11-21 | 华南农业大学 | Manufacturing method and application of reinforced and toughened plastic wood |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1506203A (en) * | 2002-12-07 | 2004-06-23 | 延边延京商业科学技术研究所 | Chemical initiation process of producing composite wood-plastic material |
-
2013
- 2013-11-11 CN CN201310555275.7A patent/CN103568088B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1506203A (en) * | 2002-12-07 | 2004-06-23 | 延边延京商业科学技术研究所 | Chemical initiation process of producing composite wood-plastic material |
Non-Patent Citations (3)
| Title |
|---|
| 孙汉文: "《高分子化学实验》", 30 April 2012, 化学工业出版社 * |
| 张丹 等: "甲基丙烯酸甲酯本体聚合动力学研究", 《化工生产与技术》 * |
| 黄志明: "甲基丙烯酸甲酯本体聚合中物性参数的测定及关联", 《高校化学工程学报》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103865098A (en) * | 2014-03-21 | 2014-06-18 | 中南林业科技大学 | Preparation method and application of wood plastic composite |
| CN103865098B (en) * | 2014-03-21 | 2016-05-11 | 中南林业科技大学 | A kind of preparation method of Wood-plastic material and application |
| JP2017519662A (en) * | 2014-06-30 | 2017-07-20 | ダウ グローバル テクノロジーズ エルエルシー | Treated porous material |
| CN107921656A (en) * | 2015-06-30 | 2018-04-17 | 陶氏环球技术有限责任公司 | Processed porous material |
| CN106625929A (en) * | 2016-12-06 | 2017-05-10 | 阜阳市伟叶家具有限公司 | Poplar strengthening method |
| CN107471363A (en) * | 2017-09-19 | 2017-12-15 | 阜南县金威工艺品有限公司 | A kind of method for lifting timber wire-drawing effect |
| CN108705634A (en) * | 2018-04-24 | 2018-10-26 | 广州精点高分子材料制品有限公司 | A kind of ceramics wood and manufacturing method based on methyl methacrylate |
| CN109648657A (en) * | 2018-12-11 | 2019-04-19 | 浙江大东吴绿家木业有限公司 | Modified wood skin, the method for modifying of wood skin, wood skin/stone plastic composite board and preparation method thereof |
| CN109968481A (en) * | 2019-05-15 | 2019-07-05 | 赛为木业（石首）有限公司 | A kind of fire retarding wood modifying agent and preparation method thereof |
| CN111195950A (en) * | 2020-01-21 | 2020-05-26 | 中国林业科学研究院木材工业研究所 | Wood modifier, wood modifying solution, application of wood modifying solution and wood modification treatment method |
| CN111195950B (en) * | 2020-01-21 | 2021-10-15 | 中国林业科学研究院木材工业研究所 | Wood modifier, wood modifying solution, application of wood modifying solution and wood modification treatment method |
| CN112123489A (en) * | 2020-09-17 | 2020-12-25 | 千年舟新材科技集团有限公司 | Technical wood material immersion liquid, preparation and treatment method and manufacturing process |
| CN114454283A (en) * | 2022-01-17 | 2022-05-10 | 刘建平 | Log rotating magnetic disk and disk body manufacturing method thereof |
| CN115464734A (en) * | 2022-09-30 | 2022-12-13 | 西南民族大学 | Precursor solution, application thereof and preparation method of hydrophobic low-moisture-absorption wood material |
| CN117086967A (en) * | 2023-09-04 | 2023-11-21 | 华南农业大学 | Manufacturing method and application of reinforced and toughened plastic wood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103568088B (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103568088B (en) | Methyl methacrylate in wood polymerisation in bulk prepares the method for vitrifying timber | |
| CN102107446B (en) | Surface-enhanced solid wood sectional material and manufacturing method thereof | |
| CN101745951B (en) | Modified planted forest timber and preparation method thereof | |
| CN103991116B (en) | The method that fast growing wood prepares reinforced wood sheet material by the composite modified process of multiple-effect | |
| CN103817757B (en) | A kind of method to windmill palm vine material enhancing modified | |
| CN102398289B (en) | Wood modifying method | |
| CN105459239B (en) | A kind of Multifunctional tree epoxy-type dyeability modifier and preparation method thereof | |
| CN101549508B (en) | Technical method for lumber functionality improvement | |
| CN103600389A (en) | Method for reinforcing wood in solid wood through micromolecule phenolic aldehyde monomers | |
| CN103934874A (en) | Poplar environment-friendly furniture and manufacturing method thereof | |
| CN112142429A (en) | Single-sided moisture-resistant paper-surface gypsum board and preparation method thereof | |
| CN105034126A (en) | Method for pressing high-performance reconsolidated wood | |
| CN107236204A (en) | A kind of preparation technology of PVC wood plastic composite decorating board | |
| CN103846988A (en) | Preparation method of wood/nano titanium dioxide composite material | |
| CN101279457B (en) | Starch based timber modifying precursor liquid and method of preparing the same | |
| CN110092972A (en) | A kind of waterproof powdered rice hulls wood plastic composite and preparation method thereof | |
| CN104018394A (en) | Manufacturing method of melamine impregnated paper used for laminate flooring | |
| CN103029183B (en) | The radiation polymerization of China's poplar or Firmiana simplex wood or Chinese pine wood plastic composite, crosslinked, grafting coordinate system Preparation Method | |
| CN106239646A (en) | Use the method that moistureproof composite urea formaldehyde resin produces full Eucalyptus solid wooden compound floor | |
| CN103509360B (en) | A kind of nanometer glass modified synergic strengthens the preparation method that plate moulded by wood | |
| CN105563597B (en) | Irradiation prepares ground-heating floor substrate and its processing method | |
| CN110733091B (en) | Preparation method of flame-retardant wood-plastic wallboard | |
| CN103786200A (en) | Method for modifying wood by utilizing electron accelerator irradiation and pressurization technology | |
| CN102672789A (en) | Durable wood-bamboo cellulose composite material | |
| CN1626324A (en) | Plywood plate in use for floorboard in container and production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |